{"id":1570,"date":"2019-02-25T02:31:03","date_gmt":"2019-02-25T01:31:03","guid":{"rendered":"https:\/\/www.bestbody.com.pl\/blog\/?p=1570"},"modified":"2021-10-18T09:44:04","modified_gmt":"2021-10-18T07:44:04","slug":"co-to-jest-orac","status":"publish","type":"post","link":"https:\/\/www.bestbody.com.pl\/blog\/co-to-jest-orac\/","title":{"rendered":"Co to jest ORAC?"},"content":{"rendered":"\n

ORAC<\/strong> (ang. oxygen radical absorbance capacity<\/em><\/strong>) \u2013 zdolno\u015b\u0107 poch\u0142aniania reaktywnych form tlenu \u2013 to oryginalna naukowa metoda oceny wykorzystywana przez Departament Rolnictwa Stan\u00f3w Zjednoczonych do szacowania og\u00f3lnego potencja\u0142u antyoksydacyjnego danych produkt\u00f3w spo\u017cywczych \u2013 jedzenia i napoj\u00f3w (g\u0142\u00f3wnie mowa o warzywach i owocach). Teoretycznie im wy\u017cszy wynik ORAC, tym wi\u0119ksza pojemno\u015b\u0107 antyoksydacyjna<\/strong>. Niekt\u00f3re firmy produkuj\u0105ce suplementy podchwyci\u0142y ten pomys\u0142 i zacz\u0119\u0142y podawa\u0107 w\u0142asny wynik ORAC lub stosowa\u0107 jakie\u015b inne parametry oceny w zakresie potencja\u0142u antyoksydacyjnego, by zwr\u00f3ci\u0107 uwag\u0119 klienta i mu zaimponowa\u0107.<\/p>\n\n\n\n

Poza tym nie ma \u017cadnych wiarygodnych wytycznych co do tego, ilu jednostek ORAC potrzebujesz dziennie. Po\u017cywienie czy napoje o wysokiej zawarto\u015bci antyoksydant\u00f3w nie musz\u0105 by\u0107 wcale zdrowsze \u2013 w badaniach nie wykazano, by tzw.\u00a0super \u017cywno\u015b\u0107<\/strong>\u00a0z klinicznego punktu widzenia by\u0142a zdrowsza ni\u017c nudne produkty bez przedrostka \u201esuper-\u201d. Szpinak i kie\u0142ki lucerny maj\u0105 ni\u017csze wyniki ORAC ni\u017c bor\u00f3wki czy truskawki? Kogo to obchodzi? Wszystkie te produkty s\u0105 zdrowe. Nie pozw\u00f3l, by twoje konsumenckie decyzje bazowa\u0142y na wyniku ORAC czy informacjach o antyoksydantach<\/a>, lub jakichkolwiek innych systemach oceny, kt\u00f3re ju\u017c istniej\u0105 albo niebawem zostan\u0105 przez producent\u00f3w wykreowane. Badania kliniczne i kontrola jako\u015bci to najlepsi przewodnicy po\u00a0\u015bwiecie suplement\u00f3w<\/strong>.<\/p>\n\n\n\n

Bibliografia:<\/strong><\/p>\n\n\n\n

  1. Synthesis, oxygen radical absorbance capacity, and tyrosinase inhibitory activity of glycosides of resveratrol, pterostilbene, and pinostilbene.<\/a><\/li>
  2. Oxygen-radical absorbance capacity assay for antioxidants.<\/a><\/li>
  3. Improvement and Interlaboratory Validation of the Lipophilic Oxygen Radical Absorbance Capacity: Determination of Antioxidant Capacities of Lipophilic Antioxidant Solutions and Food Extracts.<\/a><\/li>
  4. Ou B, Hampsch-Woodill M, Prior R. Development and validation of an improved oxygen radical absorbance capacity assay using fluorescein as the fluorescent probe<\/em>. \u201eJ Agric Food Chem\u201d. 49 (10), s. 4619\u201326, 2001. <\/li><\/ol>\n","protected":false},"excerpt":{"rendered":"

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